HELP! Flame Angel Ragged Fin

[MrsMartin615]

http://youtu.be/HZnb_tUUqLY
Noticed a couple days ago our flame angels fin was a bit ragged. From what I've read I don't think it's fin rot but any help or advice as to what might be causing it is appreciated.

Latest water test
Nitrate 20ppm
Nitrite 0ppm
Phosphate 0ppm
pH 8.2
Temp 80°
Sg 1.025

 

[Humblefish]

I suspect that Maroon clown might have taken a little bite out of him.

 

[MrsMartin615]

My husband saw the flame angel nipping at the maroon clown before so I was kind of thinking the same thing. Wanted to make sure it wasn't something more serious.

 

[Humblefish]

I have a pair of maroons, and I can tell you if any fish nips at one of them.. things aren't going to end well for that fish. :wink: